Created
November 17, 2018 13:45
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Validar CPF PHP
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<?php | |
function validaCPF($cpf) { | |
// Extrai somente os números | |
$cpf = preg_replace( '/[^0-9]/is', '', $cpf ); | |
// Verifica se foi informado todos os digitos corretamente | |
if (strlen($cpf) != 11) { | |
return false; | |
} | |
// Verifica se foi informada uma sequência de digitos repetidos. Ex: 111.111.111-11 | |
if (preg_match('/(\d)\1{10}/', $cpf)) { | |
return false; | |
} | |
// Faz o calculo para validar o CPF | |
for ($t = 9; $t < 11; $t++) { | |
for ($d = 0, $c = 0; $c < $t; $c++) { | |
$d += $cpf{$c} * (($t + 1) - $c); | |
} | |
$d = ((10 * $d) % 11) % 10; | |
if ($cpf{$c} != $d) { | |
return false; | |
} | |
} | |
return true; | |
} |
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